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WO2013008607A1 - Procédé de communication mobile, système de communication mobile et station de base radio - Google Patents

Procédé de communication mobile, système de communication mobile et station de base radio Download PDF

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Publication number
WO2013008607A1
WO2013008607A1 PCT/JP2012/065973 JP2012065973W WO2013008607A1 WO 2013008607 A1 WO2013008607 A1 WO 2013008607A1 JP 2012065973 W JP2012065973 W JP 2012065973W WO 2013008607 A1 WO2013008607 A1 WO 2013008607A1
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WO
WIPO (PCT)
Prior art keywords
congestion
bearer
radio access
eps
core network
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2012/065973
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English (en)
Japanese (ja)
Inventor
敬 輿水
威津馬 田中
知樹 芝原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTT Docomo Inc
Original Assignee
NTT Docomo Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NTT Docomo Inc filed Critical NTT Docomo Inc
Priority to US14/130,565 priority Critical patent/US9300588B2/en
Priority to EP12811788.4A priority patent/EP2731375A4/fr
Publication of WO2013008607A1 publication Critical patent/WO2013008607A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0231—Traffic management, e.g. flow control or congestion control based on communication conditions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0252—Traffic management, e.g. flow control or congestion control per individual bearer or channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H04L47/25—Flow control; Congestion control with rate being modified by the source upon detecting a change of network conditions

Definitions

  • the present invention relates to a mobile communication method, a mobile communication system, and a radio base station.
  • the eNB radio base station
  • the EPS-RAB Evolved Packet
  • the flow rate of data in the System-Radio access Bearer is adjusted.
  • 3GPP TS 23.401 3GPP TS 23.203
  • the eNB when the eNB detects congestion, the eNB can adjust the flow rate of data in the EPS-RAB. There is a problem that the bandwidth of the core network bearer (S1 bearer or S5 bearer) corresponding to can not be adjusted.
  • the present invention has been made in view of the above-described problems.
  • congestion is detected in an eNB, the flow rate of data in the EPS-RAB and the bandwidth of the core network bearer corresponding to the EPS-RAB
  • a first feature of the present invention is that a mobile station has a radio access bearer set up between the mobile station and a radio base station, and a core network bearer set up between the radio base station and a gateway device.
  • Mobile communication method for transmitting and receiving data signals via the wireless base station when the wireless base station detects congestion, the mobile management node is notified of the reason for the congestion and the radio access bearer related to the congestion
  • the gist is to have a process A for notifying identification information of each data flow flowing through the access bearer.
  • the second feature of the present invention is that a mobile station has a radio access bearer set up between the mobile station and a radio base station, and a core network bearer set up between the radio base station and a gateway device.
  • the mobile base station is configured to transmit and receive data signals via the wireless base station, and when the wireless base station detects congestion, the wireless management station notifies the mobility management node of the reason for the congestion and the wireless related to the congestion.
  • the gist is that it is configured to notify identification information of an access bearer (further, each data flow or the like flowing through the radio access bearer).
  • a third feature of the present invention is that a mobile station has a radio access bearer set up between the mobile station and a radio base station, and a core network bearer set up between the radio base station and a gateway device.
  • the wireless base station in a mobile communication system configured to transmit and receive a data signal via the wireless communication station, when congestion is detected, the mobility management node and the wireless access related to the congestion when the congestion is detected.
  • the gist of the present invention is to include a transmission unit configured to notify identification information of a bearer (further, each data flow or the like flowing in the radio access bearer).
  • FIG. 1 is an overall configuration diagram of a mobile communication system according to a first embodiment of the present invention.
  • FIG. 2 is a functional block diagram of the eNB according to the first embodiment of the present invention.
  • FIG. 3 is a diagram for explaining the operation of the mobile communication system according to the first embodiment of the present invention.
  • FIG. 4 is a diagram for explaining the operation of the mobile communication system according to the first embodiment of the present invention.
  • FIG. 5 is a diagram for explaining the operation of the mobile communication system according to the first embodiment of the present invention.
  • FIG. 6 is a diagram for explaining the operation of the mobile communication system according to the first modification of the present invention.
  • FIG. 7 is a diagram for explaining the operation of the mobile communication system according to the first modification of the present invention.
  • FIG. 8 is a diagram for explaining the operation of the mobile communication system according to the second modification of the present invention.
  • FIG. 9 is a diagram for explaining the operation of the mobile communication system according to the second modification of the present invention.
  • Mobile communication system according to the first embodiment of the present invention A mobile communication system according to a first embodiment of the present invention will be described with reference to FIG. 1 to FIG.
  • the mobile communication system includes a PCRF (Policy and Charging Rules Function, policy and charging rule server device), an MME (Mobility Management Entity, a mobility management node), and a P-GW (Mobility Management Node).
  • PCRF Policy and Charging Rules Function
  • MME Mobility Management Entity
  • P-GW Mobility Management Node
  • PDN-Gateway PDN-Gateway
  • S-GW Serving-Gateway
  • the P-GW and S-GW can be connected via the S5 interface, and the S-GW and eNB # 1 to eNB # 3 can be connected via the S1 interface, and the MME and eNB # 1 to eNB # 3 can be connected via the S1-MME interface, the MME and S-GW can be connected via the S11 interface, and the PCRF and P-GW can be connected via the Gx interface. Can be connected.
  • the PCRF and S-GW can be connected via the Gxc interface.
  • an EPS-RAB can be set between the eNB # 1 to eNB # 3 and the UE, and an S1 bearer corresponding to the EPS-RAB is set between the eNB # 1 to eNB # 3 and the S-GW. Can be set, and an S5 bearer corresponding to the EPS-RAB / S1 bearer can be set between the S-GW and the P-GW.
  • the P-GW can be connected to PDN (Packet Data Network, packet data network) # 1 / # 2.
  • PDN Packet Data Network, packet data network
  • the eNB includes a detection unit 11, an adjustment unit 12, and a transmission unit 13.
  • the detection unit 11 is configured to detect congestion in the eNB.
  • the eNB is provided with a buffer for UE that is a buffer for each UE and a whole buffer that is a buffer for the entire eNB.
  • the UE buffer is a buffer for accumulating signals transmitted / received by a specific UE, and the entire buffer is a fixed amount of buffer used when the buffer for the specific UE overflows.
  • the UE bearer is set with “QCI (QoS Class ID)” indicating QoS (Quality of Service), and “Priority (priority)” and “Delay (allowable delay) are set based on the QCI. "Packet Loss Rate (allowable packet loss rate)” is determined, and the size and priority of the UE buffer corresponding to the UE bearer are determined.
  • the detection unit 11 may use a buffer for a specific UE, a buffer usage for a specific UE exceeding a predetermined value, a buffer overflow, or a buffer usage rate. Is configured to detect congestion in the eNB when the value exceeds a predetermined value.
  • the adjustment unit 12 is configured to adjust the flow rate of data in the E-RAB when the detection unit 11 detects congestion in the eNB. Specifically, the adjustment unit 12 is configured to reduce the flow rate of data in the E-RAB when the detection unit 11 detects congestion in the eNB.
  • the adjustment unit 12 is configured to adjust the flow rate of data in the EPS-RAB of the UE.
  • the adjustment unit 12 sets the EPS- of the UE using the entire buffer. It is configured to adjust the flow rate of data in the RAB.
  • the adjustment unit 12 determines the EPS-RAB for adjusting the data flow rate based on the QCI of the EPS-RAB for each UE among the EPS-RABs of the UEs using the entire buffer. It may be configured.
  • the transmission unit 13 is configured to transmit various signals to the UE, S-GW, MME, and the like.
  • the transmission unit 13 provides the MME with the reason for the congestion (“Cause Value”) and the identification information (“bearer-ID” of the EPS-RAB related to the congestion). )).
  • the transmission unit 13 may be configured to notify the identification information “data flow ID” of each data flow flowing in the EPS-RAB.
  • the transmission unit 13 And the EPS-RAB identification information of the specific UE (that is, the EPS-RAB identification information adjusted by the adjustment unit 12).
  • the transmission unit 13 may further be configured to notify the identification information “data flow ID” of each data flow flowing in the EPS-RAB.
  • the transmission unit 13 When the detection unit 11 detects that the entire buffer overflows, or when the usage rate of the entire buffer exceeds a predetermined value, the transmission unit 13 notifies the reason for the congestion indicating that. , It is configured to notify the identification information of the EPS-RAB of the UE using the entire buffer (that is, the identification information of the EPS-RAB adjusted by the adjustment unit 12).
  • the transmission unit 13 may further be configured to notify the identification information “data flow ID” of each data flow flowing in the EPS-RAB.
  • step S102 when eNB # 1 detects congestion in the eNB by detecting buffer overflow in step S101, in step S102, it takes over the MME via the S1-MME interface. The congestion reason and the EPS-RAB identification information related to the congestion are notified.
  • step S103 based on the notification, the MME transmits “Bearer Modification” instructing the S-GW to change the setting of the core network bearer corresponding to the EPS-RAB related to the congestion.
  • the GW transmits “Bearer Modification” instructing the PCRF to change the setting of the core network bearer corresponding to the EPS-RAB related to the congestion.
  • Update Bearer defined in TS23.401 of 3GPP may be used, or another message may be used.
  • step S104 the PCRF transmits to the S-GW and P-GW “Bearer Modification” instructing to change the setting of the core network bearer corresponding to the EPS-RAB related to the congestion.
  • the S-GW and the P-GW change the settings of the S1 bearer and the S5 bearer corresponding to the EPS-RAB related to the congestion according to the “Bearer Modification”.
  • the S-GW and the P-GW reduce the bandwidth of the S1 bearer and the bandwidth of the S5 bearer corresponding to the EPS-RAB related to the congestion according to the “Bearer Modification”.
  • the P-GW has a TDF (Traffic Detection Function), it performs DPI (Deep Packet Inspection) based on the EPS-RAB identification information notified by the above-mentioned “Bearer Modification”.
  • the S-GW and the P-GW change the setting for each S1 bearer and S5 bearer corresponding to the EPS-RAB related to the congestion.
  • the S-GW and the P-GW adjust (ie, reduce) the bandwidth in units of flows for the S1 bearer and the S5 bearer corresponding to the EPS-RAB related to the congestion.
  • the S-GW and the P-GW do not reduce the bandwidth for the flow for emergency communication (for example, disaster communication) within the S1 bearer and the S5 bearer in which the same QCI is set, -For the flow for data communication (for example, game communication) of GBR (Guaranteed Bit Rate), it is possible to control in units of flow such as reducing the bandwidth.
  • emergency communication for example, disaster communication
  • GBR Guard Bit Rate
  • eNB # 1 detects congestion in the eNB by detecting buffer overflow in step S201, it takes over the MME via the S1-MME interface in step S202. The congestion reason and the EPS-RAB identification information related to the congestion are notified.
  • step S203 based on the notification, the MME transmits “Bearer Modification” instructing the S-GW to change the setting of the core network bearer corresponding to the EPS-RAB related to the congestion, and in step S204.
  • step S205 the S-GW transmits “Bearer Modification” instructing the P-GW to change the setting of the core network bearer corresponding to the EPS-RAB related to the congestion.
  • step S205 the P-GW , “Bearer Modification” is transmitted to the PCRF, which instructs to change the setting of the core network bearer corresponding to the EPS-RAB related to the congestion.
  • step S206 the PCRF transmits “Bearer Modification” instructing the P-GW to change the setting of the core network bearer corresponding to the EPS-RAB related to the congestion.
  • step S207 the P-GW , “Bearer Modification” instructing to change the setting of the core network bearer corresponding to the EPS-RAB related to the congestion is transmitted to the S-GW.
  • the S-GW and the P-GW change the settings of the S1 bearer and the S5 bearer corresponding to the EPS-RAB related to the congestion according to the “Bearer Modification”.
  • the S-GW and the P-GW reduce the bandwidth of the S1 bearer and the bandwidth of the S5 bearer corresponding to the EPS-RAB related to the congestion according to the “Bearer Modification”.
  • DPI is performed based on the identification information of the EPS-RAB notified by the “Bearer Modification”, and the S-GW and the P-GW The setting is changed for each S1 bearer and S5 bearer corresponding to the EPS-RAB related to the congestion.
  • the S-GW and the P-GW adjust (ie, reduce) the bandwidth in units of flows for the S1 bearer and the S5 bearer corresponding to the EPS-RAB related to the congestion.
  • the S-GW and the P-GW may perform non-GBR data communication without reducing the bandwidth for the emergency communication flow in the S1 bearer and the S5 bearer in which the same QCI is set.
  • the flow for use it is possible to control in units of flow such as reducing the bandwidth.
  • the eNB when the eNB detects congestion, the eNB can notify the MME of the reason for the congestion and the identification information of the EPS-RAB related to the congestion. -Effective adjustment of resources can be realized by adjusting not only the data flow rate in the RAB but also the bandwidth of the core network bearer corresponding to the EPS-RAB.
  • Modification 1 the mobile communication system according to the first modification of the present invention will be described with reference to FIG. 6 and FIG. 7 while focusing on differences from the mobile communication system according to the first embodiment described above.
  • the eNB includes the above-described TDF and is configured to be able to perform DPI.
  • eNB # 1 detects congestion in the eNB by detecting buffer overflow in step S301, DPI is performed, and the data flow rate in the EPS-RAB related to such congestion Determine the flow to be adjusted.
  • step S302 the MME is notified of the reason for the congestion and the identification information of the flow in the EPS-RAB whose data flow rate should be adjusted via the S1-MME interface.
  • step S303 based on the notification, the MME transmits “Bearer Modification” instructing the S-GW to change the flow setting in the core network bearer corresponding to the EPS-RAB related to the congestion.
  • the S-GW transmits “Bearer Modification” instructing the PCRF to change the flow setting in the core network bearer corresponding to the EPS-RAB related to the congestion.
  • step S304 the PCRF transmits, to the S-GW and P-GW, “Bearer Modification” instructing to change the flow setting in the core network bearer corresponding to the EPS-RAB related to the congestion.
  • the S-GW and the P-GW change the settings of the flow in the S1 bearer and the flow in the S5 bearer corresponding to the EPS-RAB related to the congestion according to the “Bearer Modification”.
  • the S-GW and the P-GW reduce the flow band in the S1 bearer and the flow band in the S5 bearer corresponding to the EPS-RAB related to the congestion according to the “Bearer Modification”. To do.
  • the S-GW and the P-GW do not reduce the bandwidth for the flow for emergency communication (for example, disaster communication) within the S1 bearer and the S5 bearer in which the same QCI is set, -For the flow for data communication (for example, game communication) of GBR (Guaranteed Bit Rate), it is possible to control in units of flow such as reducing the bandwidth.
  • emergency communication for example, disaster communication
  • GBR Guard Bit Rate
  • eNB # 1 detects congestion in the eNB by detecting buffer overflow in step S401, DPI is performed, and the data flow rate in the EPS-RAB related to such congestion Determine the flow to be adjusted.
  • step S402 the eNB # 1 notifies the MME of the reason for the congestion and the flow identification information in the EPS-RAB related to the congestion via the S1-MME interface.
  • step S403 based on the notification, the MME transmits “Bearer Modification” instructing the S-GW to change the flow setting in the core network bearer corresponding to the EPS-RAB related to the congestion.
  • step S404 the S-GW transmits “Bearer Modification” instructing the P-GW to change the setting of the flow in the core network bearer corresponding to the EPS-RAB related to the congestion, and in step S405.
  • the P-GW transmits “Bearer Modification” instructing the PCRF to change the flow setting in the core network bearer corresponding to the EPS-RAB related to the congestion.
  • step S406 the PCRF transmits “Bearer Modification” instructing the P-GW to change the flow setting in the core network bearer corresponding to the EPS-RAB related to the congestion.
  • step S407 the PCRF -GW transmits "Bearer Modification” which instruct
  • the S-GW and the P-GW change the settings of the flow in the S1 bearer and the flow in the S5 bearer corresponding to the EPS-RAB related to the congestion according to the “Bearer Modification”.
  • the S-GW and the P-GW reduce the flow band in the S1 bearer and the flow band in the S5 bearer corresponding to the EPS-RAB related to the congestion according to the “Bearer Modification”. To do.
  • the S-GW and the P-GW may perform non-GBR data communication without reducing the bandwidth for the emergency communication flow in the S1 bearer and the S5 bearer in which the same QCI is set.
  • the flow for use it is possible to control in units of flow such as reducing the bandwidth.
  • the eNB when the eNB detects congestion, the eNB notifies the MME of the reason for the congestion and the flow identification information in the EPS-RAB related to the congestion. Therefore, effective utilization of resources can be realized by adjusting not only the flow rate of data in the flow in the EPS-RAB but also the bandwidth of the flow in the core network bearer corresponding to the EPS-RAB. .
  • Modification 2 a mobile communication system according to Modification 2 of the present invention will be described with reference to FIG. 8 and FIG. 9 while focusing on differences from the mobile communication system according to the first embodiment described above.
  • the plurality of eNB # 1 to eNB # 3 detect congestion by detecting buffer overflow in step S501, and in step S502, the eNB # 1 to eNB # 3 pass through the S1-MME interface to the MME.
  • the reason for the congestion and the EPS-RAB identification information related to the congestion are notified.
  • step S503 based on the notification, the MME transmits “Bearer Modification” instructing the S-GW to change the setting of the core network bearer corresponding to the EPS-RAB related to the congestion.
  • the GW transmits “Bearer Modification” instructing the PCRF to change the setting of the core network bearer corresponding to the EPS-RAB related to the congestion.
  • the MME is a special case such as the occurrence of a disaster because the plurality of eNB # 1 to eNB # 3 are notified of all EPS-RAB identification information as the EPS-RAB identification information related to congestion. Recognizing this, the bandwidth (resource) of all EPS-RABs is uniformly reduced, and the bandwidth (resource) of the core network bearer corresponding to all EPS-RABs is uniformly reduced with respect to the S-GW. “Bearer Modification” is transmitted to instruct.
  • the S-GW transmits “Bearer Modification” instructing the PCRF to uniformly reduce the bandwidth (resource) of the core network bearer corresponding to all EPS-RABs.
  • step S504 the PCRF transmits to the S-GW and P-GW “Bearer Modification” instructing to uniformly reduce the bandwidth of the core network bearer corresponding to all EPS-RABs.
  • the S-GW and the P-GW uniformly reduce the bandwidth of the S1 bearer and the S5 bearer corresponding to all EPS-RABs in accordance with the “Bearer Modification”.
  • the plurality of eNB # 1 to eNB # 3 detect congestion by detecting buffer overflow in step S601, and in step S602, the eNB # 1 to eNB # 3 pass through the S1-MME interface to the MME.
  • the reason for the congestion and the EPS-RAB identification information related to the congestion are notified.
  • step S603 based on the notification, the MME transmits “Bearer Modification” instructing the S-GW to change the setting of the core network bearer corresponding to the EPS-RAB related to the congestion, and in step S604.
  • step S605 the S-GW transmits “Bearer Modification” instructing the P-GW to change the flow setting in the core network bearer corresponding to the EPS-RAB related to the congestion.
  • -GW transmits "Bearer Modification” which instruct
  • the MME is a special case such as the occurrence of a disaster because the plurality of eNB # 1 to eNB # 3 are notified of all EPS-RAB identification information as the EPS-RAB identification information related to congestion. (Each network operator decides and sets in advance, etc.) and all the EPS-RAB bandwidths (resources) are uniformly reduced, and all EPS-RABs are compared to S-GWs. "Bearer Modification" is transmitted to instruct to uniformly reduce the bandwidth (resource) of the core network bearer corresponding to
  • the S-GW transmits “Bearer Modification” instructing the P-GW to uniformly reduce the bandwidth (resource) of the core network bearer corresponding to all EPS-RABs.
  • the P-GW transmits “Bearer Modification” instructing the PCRF to uniformly reduce the bandwidth (resource) of the core network bearer corresponding to all EPS-RABs.
  • step S606 the PCRF transmits a “Bearer Modification” instructing the P-GW to uniformly reduce the global area of the core network bearer corresponding to all EPS-RABs.
  • step S607 the P-GW transmits the “Bearer Modification”.
  • the GW transmits to the S-GW “Bearer Modification” instructing to uniformly reduce the global area of the core network bearer corresponding to all EPS-RABs.
  • the S-GW and the P-GW uniformly reduce the bandwidth of the S1 bearer and the S5 bearer corresponding to all EPS-RABs in accordance with the “Bearer Modification”.
  • the PCRF is responsible for all communication resources, that is, all EPS-
  • the S1 bearer and S5 bearer bands (and all EPS-RAB bands) corresponding to the RAB are uniformly reduced.
  • the resource allocation is reduced uniformly in all communications, and thus limited. By allocating resources evenly, as much communication as possible can be made possible.
  • the first feature of the present embodiment is that an UE (mobile station) is configured between an UE and an eNB (radio base station), an EPS-RAB (radio access bearer), an eNB and an S-GW (gateway device). ) Is a mobile communication method for transmitting and receiving data signals via the S1 bearer (core network bearer) set between the eNB and the eNB when detecting congestion, the MME (mobile management node) The gist is to have a process A for notifying the reason for the congestion and the identification information of the EPS-RAB related to the congestion.
  • the setting of the core network bearer corresponding to the EPS-RAB related to the congestion is set. Step B for instructing the change, and Step C for changing the setting of the core network bearer (S1 bearer) corresponding to the EPS-RAB related to the congestion when the S-GW receives the instruction May be.
  • step C when the S-GW receives the above instruction, the S-GW changes the setting for each flow in the S1 bearer corresponding to the EPS-RAB related to the congestion. Also good.
  • the method may further include a step of instructing to uniformly reduce the bandwidth of the core network bearer corresponding to all EPS-RABs.
  • the second feature of the present embodiment is that the UE transmits and receives data signals via the EPS-RAB configured between the UE and the eNB and the S1 bearer configured between the eNB and the S-GW.
  • the eNB detects congestion, the eNB is configured to notify the MME of the reason of the congestion and the identification information of the EPS-RAB related to the congestion. It is a summary.
  • the MME when the MME receives the above-described reason for congestion and the identification information of the EPS-RAB related to the congestion, the MME sets the core network bearer corresponding to the EPS-RAB related to the congestion.
  • the S-GW is configured to change the setting of the core network bearer (S1 bearer) corresponding to the EPS-RAB related to the congestion when the instruction is received. It may be.
  • the S-GW is configured to change the setting in units of flows in the S1 bearer corresponding to the above-described congestion of EPS-RAB when receiving the above-described instruction. It may be.
  • the EPS-RAB identification information related to the above-described congestion
  • It may be configured to instruct to uniformly reduce the bandwidth of the core network bearer corresponding to the EPS-RAB.
  • the third feature of the present embodiment is that the UE transmits and receives data signals via the EPS-RAB set between the UE and the eNB and the S1 bearer set between the eNB and the S-GW.
  • An eNB in a mobile communication system configured to be configured to notify the MME of the reason for the congestion and the identification information of the EPS-RAB related to the congestion when the congestion is detected.
  • the gist is that the transmitter 13 is provided.
  • the transmission unit 11 may be configured to notify the identification information of the flow in the EPS-RAB related to the above-described congestion.
  • the transmission unit 11 may be configured to notify a reason for congestion indicating that a specific mobile station buffer is congested.
  • the transmission unit 11 may be configured to notify the reason for congestion indicating that the entire buffer is congested.
  • Software modules include RAM (Random Access Memory), flash memory, ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electronically Erasable and Programmable, Removable ROM, and Hard Disk). Alternatively, it may be provided in an arbitrary format storage medium such as a CD-ROM.
  • the storage medium is connected to the processor so that the processor can read and write information from and to the storage medium. Further, such a storage medium may be integrated in the processor. Such a storage medium and processor may be provided in the ASIC. Such an ASIC may be provided in a UE, eNB, MME, S-GW, P-GW, PCRF, or the like. Further, the storage medium and the processor may be provided in the UE, eNB, MME, S-GW, P-GW, PCRF, etc. as discrete components.
  • the flow rate of data in the EPS-RAB and the bandwidth of the core network bearer corresponding to the EPS-RAB are also adjusted.
  • UE ... mobile station eNB ... radio base station MME ... mobile management node S-GW ... serving gateway device P-GW ... packet data network gateway device PCRF ... policy and charging rule server device 11 ... detector 12 ... adjuster 13 ... transmitter

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

Quand des congestions sont détectées à un eNB, un ajustement est accompli, non seulement sur le débit d'écoulement de données dans un EPS-RAB, mais aussi sur la bande d'une porteuse de cœur de réseau correspondant au EPS-RAB. Il est possible, de cette manière, de parvenir à une efficacité optimale d'utilisation des ressources. Afin d'atteindre cet objectif, la présente invention se rapporte à un procédé de communication mobile qui comprend une étape (A) au cours de laquelle, après qu'un eNB a détecté des congestions, le eNB transmet à une MME à la fois la cause de ces congestions et des informations d'ID d'un EPS-RAB en rapport avec lesdites congestions.
PCT/JP2012/065973 2011-07-08 2012-06-22 Procédé de communication mobile, système de communication mobile et station de base radio Ceased WO2013008607A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US14/130,565 US9300588B2 (en) 2011-07-08 2012-06-22 Mobile communication method, mobile communication system and radio base station
EP12811788.4A EP2731375A4 (fr) 2011-07-08 2012-06-22 Procédé de communication mobile, système de communication mobile et station de base radio

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2011152256 2011-07-08
JP2011-152256 2011-07-08
JP2011245588A JP5883272B2 (ja) 2011-07-08 2011-11-09 移動通信方法、移動通信システム及び無線基地局
JP2011-245588 2011-11-09

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JP5883272B2 (ja) 2016-03-09
US20140119192A1 (en) 2014-05-01
JP2013038759A (ja) 2013-02-21
EP2731375A1 (fr) 2014-05-14
US9300588B2 (en) 2016-03-29

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